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when the first Onboard SCSI parameter under the Onboard Devices
Configuration screen is set to Disabled .
This item allows you to manually assign the interrupt for the second onboard
SCSI device when the PCI IRQ Setting parameter is set to Manual.
parameter is grayed and not user-configurable when the PCI IRQ Setting is set to
Auto and when the second Onboard SCSI parameter under the Onboard Devices
Configuration screen is set to Disabled .
This parameter allows you to set the length of time for a PCI device to use the PCI
bus.
A PCI master can burst indefinitely as long as the target can source/sink the data,
and no other agent requests for the bus. If another PCI device requests for the
use of the PCI bus, a PCI bus arbitration takes place, and the tenure of the device
currently using the PCI bus cannot go over the PCI latency time set in BIOS. This
setting depends on your application.
bandwidth block I/O card, e.g., FDDI, the longer the latency time the better. This
setting only affects the primary PCI components (PCI slots 1, 2, 3, and onboard
LAN). The secondary PCI components (PCI slots 4, 5, and onboard SCSI1 and
onboard SCSI2) are always set to 20 PCI clocks.
Setting this parameter to Yes allows you to assign the same IRQ to two different
devices. To disable the feature, select No.
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AcerAltos 9100B Series User's Guide
Onboard SCSI2
PCI Device Latency Timer
PCI IRQ Sharing
If there are no IRQs available to assign for
the
remaining
recommend that you enable this parameter.
For example, if you install a high
device
function,
we
This
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